Talking-machine.



P. B. DELANY.

TALKING MACHINE. APPLmATVloN m50 MAY 14, 1915.

Patented Oct. 31, 1916. v

3 SHEETS-SHEET 1.

' 1,202,973.` Patent-ed ont. 31,191.6.

P. B. DELANY.

TALKING MACHINE.

APPLICATION FILED MAY14. 1915.

3 SHEETS-SHEET 2.

Mlmffmzgp y P.V. DELANY. TALKING MACHINE. APPLICATION FILED M AY I4, 1915.

Patented 001.' 31, 1916.

I l i sTATEs PATENT oEEIoE. i

PATRICK DELANY, 0F SOUTH ORANGE, NEW JERSEY.

Terme-Macallan.

To all 'whom 'it may concern.'

Be it known that I, PATRICK 1B. DELANY, a citizen of the United States, residing at South Orange, inl the county of Essex and State of New Jersey, have invented 'certain i new and useful Improvements in Talking- Machines, of which the following is a specication.. l

The 'object of this invention'is to improve the tone and enunciation of talking machines and to eliminate as much as possible the metallic notes or sounds more or less incident to all such machines.4 T

.I have .found that if asecondary diaphragm` be properly combined with `the usual diaphragm orif the usual sound-box be properly combined with an `auxiliary 4 diaphragm e uipped box and b oth be made lto transmit t e1r vibrationsl to a common horn, amplifier or tonearm or tohorns receiving sound waves from all the dia-` phragms the desiredresults above mentioned may be obtained. Y

In carrying out my invention, I may ern-` ploy two boxes, one, which I call the prlmary box, being equippedy with a vibratory arm carrying a reproducing needle as usual, and the other or secondary box, bemg of similar construction but without a vibra tor armandneedle. These boxes are preferably though not necessarily mounted at lopposite ends of a tube or air chamber communicatingwith the mouth of an am-` plifier, horn or tonearm. the arrangement being such that the vibrations produced in the primary box are transmitted to `the sech y ondary box, cause the diaphragm thereof to vibrate and to thus produce secondaryl sound waves which join the sound waves produced in the primary bnx and pass with them through the tone-arm or other conl, ductor `or amplier to the listener. In this way a clearer2 sweeter and more attractive reproduction 1s obtained. i

In the accompanying drawings: Figure 1 isv a pers ective view of so much of a talking mac ine as is necessary to show one way of embodying my improvements. Fig.

2 shows a section through a part of a tonearm and air chamber and the primary and secondary boxes applied thereto according to my invention. show various modified ways of embodying the invention. Fig. 7 shows 'how a primary box and fa plurality of secondary, sound-boxes may be combined with n pluv:spemateriau bf meer; ramt. Application led Hay' 14, 1915.` Serial No. 28,009.

.been o Figs. 3 to i6, inclusiva..

. rality ofhorns, tone-arms Lor amplifiers;

and `Fi' 8 indicates how the extra weight impose on the tone-arm by the boxes may be compensated. i

The cabinet A supports a turntable B for the record R. The tone-arm, amplifier or horn C may be made in any usual Way but it carries at its -mouth or front end an air lchamber G which communicates with the part C in the manner indicated in Fig. 2. This chamber G, in the form of instrument shown, is disposed at right an les to the part and vextends to an equa extent on each side thereof. At one end it carries a.

. sound-box I) which may be of any preferredv `construction, its `diaphragm d being connected with a vibratoryarmor stylus bar F, supported at f and .carrying -a needle f. Attheopposite end of the chamber G is located the secondary box E `which may be similarin all respects to the primary box D buty has no vibrating arm, needle `or needle-supporting arm. The 'sound waves produced by the diaphragm of the primary box impinge on the diaphragm e of the secondary box and also enter the mouth of the tone-arm or part C. The sound waves 'Patented oct. 31, 1916.

produced by the diaphragm of the secondary box are directed toward the primary box, join the primary Waves and pass with them into the tone-ar1n. They are, inl a ing waves proceeding from the primary reproducer but inasmuch as the boxes are quite close together no perceptible differ ence in the timel of the entrance of such waves from both boxes into the tone-arm, ampliiier or horn occurs and they reach the listener in perfect unison. In this way the sense, a reliection or echo of the correspondusual metallic sounds are largely eliminated or smothered.

Experience has demonstrated that the primary and secondary waves assist in produc-` ing sweeter,` clearer and more 4harmonious and 'agreeable tones than have heretofore tained where'a single box has been employed; Y

, There are various ways in which the' secondary or additional diaphragm equipped boxes may be applied. Some lof these are shown in Fi s. 3 to 7,' inclusive.

In Fig. 3't' e mouth of the tone-arm H is shown as v being lprovided with curved branches'h, hf, one of which la. is equipped `with, a sound-box I provided with a vibratory arm -s' and a reproducing needle i', while T 2 and the others by the air waves generated by box Q parallel with the box-Q and there I' the other, h', is provided with a secondary' l shown in Fig. 3 is indicated, except that 1 whereas in Fig. 3 the boxes are shown as being parallel with' each other those shown in Fig. 4 aredisposed'at right angles.

In '-Fig. 5 the tone-arm J 1s shown as being provided with 'a curved extension' j equipped with a reproducing sound-box and needle K and the tone-arm is also provided with a short branch' Z carrying a. secondary box L.

Fig. 6 shows an arrangement of a larger this case they sound-box M is equipped with a vibratory arm and needle and connects with an air chamber m similar to that G shown in Fig. 1, and this air chamber connects'w-ith'a secondary box M and also with the tone-arm or horn N through a conduit "n. O indicates a third box connected with the chamber m by means of a branch pipe o.'

All of the boxes are actuated practically in unison, the first by the reproducing needle the diaphragm of the reproducer or primary box, and inasmuch as the boxes or diaphragms are quite close together there is 'no vinterference 'of the Waves of -sound emanat ing from all the reproducers but they join each other and .pass together in unison or coincident in pitch to the listener. In Fig. 7 I have shown how a plurality of horns ampliers or tone-arms may be com- "binedwith a plurality of boxes. This may bedone in variousways, but in the specific instance shown the primary box Q ismounte'd at the end of' an air-chamber G', at the oppositeend of which there is a secondary are two other-secondary boxes Q2, 'Q3 disjposed at right angles to the boxes Q, Q and also communicating with the air-chamber G. The vhorns T2, T3 both communicate with number of boxes, three being indicated. In

vducers, tone-arms, or. other sound emitters,

-or to any vspecic arrangement for bringing them into susceptible relationto the primary vibration', a chamber connectin the air-chamber and .are supported, together' with the air-chamber-and 'the' boxes `yan karm S pivotally'supported as shown, so that I the reproducing mechanism may swing in the usual way.

Fig. 8 is a section-'on the line 9-9 of Fig.k

7 and itv showsv how the extra 'weight incl- Y dent to the 'use of a plurality of boxes may i's secured at p to the joint of the support S and bears upon it at p The sprn turns ca Irwin be understood that nay-invention is 'I iecompensated. For this purpose a spring' Y with the part p of the joint. A-simi ar de#` sound-box' which controls them.

1. 'A talking machine equipped' with a tone arm, a primary `and a secondary diaphragrmof approximately the same Iratei of t e iaphragms with each other and wi h the tone arm and the sound waves fromwhich join and` pass together to the listener through said chamber and `tone arm, said primary diaphragm being provided with. devices for actuating it from the rrecord and said secondary diaphragmbeing actuated vsolely by sound waves emanating from the primary diaphragm.

2. A talking machine equipped with a tone arm, a sound box` where sound waves are primarily produced and a box having a diaphragm of approximately the/same rate of vibration as the diaphragm of-the, sound box first mentioned and which reeives the sound Waves produced by .said first -mentioned sound box and generates secondary Waves which join the .primary waves and pass together to the listener through the tone arm and a chamber connecting said sound boxes with each other and wlth the tone arm. 3. A talking machina gprovided with a tone arm` carrying primary and secondary boxes equipped with diaphragms and a connecting chamber and in which the secondary box receives through the connecting chamber the soundwaves from the primary box and generates only secondary sound waves lwhich pass with the primary waves throughy the tone arm to the listener.

4.I A talking machine equipped with a. tone arm, a primary box equipped with a diaphragm and a secondary lbox provided with 'a diaphragm -having 'approximately the same rate of vibration as the diaphragm 'of the primary box, one of said diaphragms being actuated from the record and the other solely by sound 'waves emanating-from the prlmar boxand a chamber connecting said sound oxes with each other and with the tone arm.

5. A talking machine equipped with 'a tone arm provided with an a1r chamber communicating with aprimary sound A.box actuated from the record and with a-secondary .box equipped with 'a diaphragm actuated'- -solely by sound waves emanating from the "prima-ry sound box. i

provides' ample and direct outlets for .the sound 6. In a talking nl achine'fand in combination with the tone arm thereof a plurality of boxes' equipped with diaphragme and communicating with-each other and with th.: tone arm, the diaphrag'ms-or vibrating portions Which e at @une w a other, the diaphragm of4 one of said boxesJ bein actuated from the record and the other diap ragm` being actuated by sound waves emanating from the last mentioned box.

IS 7. A talking machine equipped with a tone arm, a reproducer prov1ded with a diaphragm actuated from the record, and a box having a diaphragm ofapproximately the same rate of vibration 'as that o'f the repro- 10 ducerg said reproducer and boxbeing connected by a walled conduit through which the primary sound Waves pass to said box and through which conduit both the yprimary and secondary waves pass to the tone 15 arm' and thence to the listener.

8 A talking machine provided with l tone arm carrying primary and secondary boxes equipped with diaphragms and havinlg a walled conduit connecting said boxes wV ich conveys the primary sound waves lto the secondary box and which also conveys the primary and secondary sound waves to the tone arm.

In testimony whereof, I have hereunto subscribed my name.-

PATRICK B. DELANY.

Witnesses:

ANNIE M. DELANY, ANNIE P. RrrnNoUR.

Correction in letters Patent N."1,20`2,'973.

It is hereby certified that in Letters Patent No: 1,202,92'3, granted October 3l, 1916, upon the application of Patrick B. Delany, of South Orange, New Jersey, for an improvement in Ts.lking-Machines," an error appears in the printed specification `requiring correction asfollows: Page 1, line 56, before the word "boxes strike i out the word and hyphen soundn and that the ysaid Letter Patent shoulzl be read with this correction therein thatthe same may conform to the record of izho casein the Patent Oce.

Signed and sealed this 26th day of December, A. D., 1916.

R. F. Wm'rEHnAD,

[sun] Acting Commissioner Cl. 274-5-23. 

